Walgreens: Fiber Plus Bars $0.80 Per Box January 13, 2011 This post may contain a link to an affiliate. See my disclosure policy for more information. If you’re looking to stock up on snack bars, you can get Fiber Plus bars for only $0.80 per box at Walgreens: Buy 5 Fiber One Bars, $2 each: $10 Use 5 $0.50/1 coupons from Coupons.com or SmartSource Pay $7.50 Get back a $3.50 RR Final cost: $0.80 per box Thanks, Wild for Wags!